Organizational activities

Member of the Council of the University for a 5 year period. Director (once) and Codirector (twice) of NATO Advance Study Institutes (ASI-s) on different aspects of the quantum theory of polymers. Member of Organizing Comittess of two further NATO ASI-s. Coorganizer of International Quantum Chemistry School (Hungary, 1967). Coorganizer of several International Sympozia and Workshops (New York 1969,1983; Namur (Belgium) 1978; Codirector of Cecam Workshop in Paris 1980 and 1981; Nuremberg, 1984). Coorganizer of the First , Second and Third Congresses of the International Society for Theoretical Chemical Physics (ISTCP) (Girona, Spain June 27 – July 3, 1993, New Orleans, USA April 9-13, 1996 and Mexico City November 8-13, 1999). Founder and First President of the International Society for Theoretical Chemical Physics 1990-2000.

Research interests

Electronic structure of molecules and polymers.

Development of methods: HF theory of solids and polymers. Electron correlation in molecules and polymers.

Treatment of disorder in polymers.

The effect of magnetic and electric field on polymers (non-linear optical properties).